YOU SAID:
All I want for Christmas is youuuuuuu, baby
INTO JAPANESE
クリスマスに欲しいのはyouuuuuuu、baby
BACK INTO ENGLISH
What I want for Christmas is youuuuuuu, baby
INTO JAPANESE
私がクリスマスに欲しいのはyouuuuuuu、ベイビーです
BACK INTO ENGLISH
What I want for Christmas is youuuuuuu, baby
That didn't even make that much sense in English.